how views can filter out untranslated content depending on current user's language (URL prefix)

I have entity translated content type page
two language english / greek
and I have all pages in english but only some are translated into greek
I have a view setup that shows node title (title fields which gets translated with entity translation)

I have setup views to the point where switching language from language switcher block brings the translated title field

THE PROBLEM is I can't filter the view to only show translated nodes when I am viewing the greek version of the view (when visiting el/viewname english titles are appearing together with greek ones)

In views I have set
Field Language > current user's language
with/without - When needed, add the field language condition to the query
(I suppose this brings the translated title to the view)

I also tried following filters
Content translation: Language > is one of > Current user's language
which produces no results for greek language (since this is entity translated content it makes sense)

Node translation: Child translation
which produces no results for greek language

I have tried all the content translation filters but no luck

NOTE: Language detection and selection are both set to URL as first option
admin/config/regional/language/configure

I even also tried proposed solution from 6.x #319730: Views Filter for Untranslated Nodes (here)

is this possible in current state of drupal/views/i18nviews/entity/entity_translation ?
I have installed latest drupal and all modules dev versions

I apoligize if this support request belongs to another queue